package kahuuFotos.interfaz;

import java.io.File;

import javax.swing.filechooser.FileFilter;

/**
 * 
 * @author gustavolozano
 *
 */
public class ImageFilter extends FileFilter 
{
	 public final static String jpeg = "jpeg";
     public final static String jpg = "jpg";
     public final static String gif = "gif";
     public final static String tiff = "tiff";
     public final static String tif = "tif";
     public final static String png = "png";
 	
     public String getExtension(File f) {
         String ext = null;
         String s = f.getName();
         int i = s.lastIndexOf('.');
  
         if (i > 0 &&  i < s.length() - 1) {
             ext = s.substring(i+1).toLowerCase();
         }
         return ext;
     }
 	
     //Accept all directories and all gif, jpg, tiff, or png files.
     @Override
		public boolean accept(File f) 
     {
         if (f.isDirectory()) {
             return true;
         }
  
         String extension = getExtension(f);
         if (extension != null) {
             if (extension.equals(tiff) ||
                 extension.equals(tif) ||
                 extension.equals(gif) ||
                 extension.equals(jpeg) ||
                 extension.equals(jpg) ||
                 extension.equals(png)) {
                     return true;
             } else {
                 return false;
             }
         }
  
         return false;
     }
  
     //The description of this filter
     @Override
		public String getDescription() {
         return "Images (*.png, *.jpg, *.jpeg, *.gif, *.tig, *.tiff)";
     }
}
